linux-kernel - linux-next: manual merge of the risc-v tree with the arm64 tree

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Date: Fri, 15 Mar 2024 10:31:46 +1100
From: Stephen Rothwell <sfr@...b.auug.org.au>
To: Palmer Dabbelt <palmer@...belt.com>, Paul Walmsley <paul@...an.com>,
 Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>
Cc: Ji Sheng Teoh <jisheng.teoh@...rfivetech.com>, Linux Kernel Mailing List
 <linux-kernel@...r.kernel.org>, Linux Next Mailing List
 <linux-next@...r.kernel.org>, Locus Wei-Han Chen <locus84@...estech.com>,
 Palmer Dabbelt <palmer@...osinc.com>, Yu Chien Peter Lin
 <peterlin@...estech.com>
Subject: linux-next: manual merge of the risc-v tree with the arm64 tree

Hi all,

Today's linux-next merge of the risc-v tree got a conflict in:

  drivers/perf/Kconfig

between commits:

  c2b24812f7bc ("perf: starfive: Add StarLink PMU support")
  f0dbc6d0de38 ("perf: starfive: Only allow COMPILE_TEST for 64-bit architectures")

from the arm64 tree and commit:

  bc969d6cc96a ("perf: RISC-V: Introduce Andes PMU to support perf event sampling")

from the risc-v tree.

I fixed it up (see below) and can carry the fix as necessary. This
is now fixed as far as linux-next is concerned, but any non trivial
conflicts should be mentioned to your upstream maintainer when your tree
is submitted for merging.  You may also want to consider cooperating
with the maintainer of the conflicting tree to minimise any particularly
complex conflicts.

-- 
Cheers,
Stephen Rothwell

diff --cc drivers/perf/Kconfig
index 004d86230aa6,564e813d8c69..000000000000
--- a/drivers/perf/Kconfig
+++ b/drivers/perf/Kconfig
@@@ -86,15 -86,20 +86,29 @@@ config RISCV_PMU_SB
  	  full perf feature support i.e. counter overflow, privilege mode
  	  filtering, counter configuration.
  
 +config STARFIVE_STARLINK_PMU
 +	depends on ARCH_STARFIVE || (COMPILE_TEST && 64BIT)
 +	bool "StarFive StarLink PMU"
 +	help
 +	   Provide support for StarLink Performance Monitor Unit.
 +	   StarLink Performance Monitor Unit integrates one or more cores with
 +	   an L3 memory system. The L3 cache events are added into perf event
 +	   subsystem, allowing monitoring of various L3 cache perf events.
 +
+ config ANDES_CUSTOM_PMU
+ 	bool "Andes custom PMU support"
+ 	depends on ARCH_RENESAS && RISCV_ALTERNATIVE && RISCV_PMU_SBI
+ 	default y
+ 	help
+ 	  The Andes cores implement the PMU overflow extension very
+ 	  similar to the standard Sscofpmf and Smcntrpmf extension.
+ 
+ 	  This will patch the overflow and pending CSRs and handle the
+ 	  non-standard behaviour via the regular SBI PMU driver and
+ 	  interface.
+ 
+ 	  If you don't know what to do here, say "Y".
+ 
  config ARM_PMU_ACPI
  	depends on ARM_PMU && ACPI
  	def_bool y

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